The Zing snack company is known for its high-caffeine, high-sugar snacks. Their vending machine near the computer lab has two kinds of snacks: Coffee Zings cost $1.00 each, Joltin Zings cost $1.50 each. Each morning at 10am the Zing delivery person stops by and fills the vending machine so it has its capacity of 150 Coffee Zings and 100 Joltin Zings. Every ten minutes the probabilities are 35% no one buys a Coffee Zing, 30% one person buys a Coffee Zing, 25% two people buy a Coffee Zing, 10% three people buy a Coffee Zing. Every ten minutes the probabilities are 45% no one buys a Joltin Zing, 30% one person buys a Joltin Zing, and 25% two people buy a Joltin Zing. Once the machine runs out of Coffee Zings no more Coffee Zings can be purchased.